Method, system and device for analyzing acoustic waves applied to spatial acoustic signals

Abstract

The present invention provides a sound wave analysis method, system and device thereof for spatial audio signals, the sound wave analysis method including the steps of: transmitting an audio signal from a transmitting end; receiving the audio signal at a receiving end and generating corresponding intensity variation information; calculating the intensity variation information by an algorithm to generate positioning information; and adjusting the audio signal according to the positioning information to generate an audio signal having a spatial audio signal, thereby more accurately tracking user behavior and adjusting the audio signal accordingly, thereby improving the user experience.

Description

[Technical Field]

[0001] The present invention relates to the field of analysis, and more particularly to a method, system and apparatus for analyzing acoustic waves applied to spatial acoustic signals. [Background technology]

[0002] Spatial audio uses algorithms to adjust the intensity and time difference between the sounds received by each ear, mimicking the direction and location of a sound source. This allows users to perceive sounds as coming from different directions. By combining gyros, accelerometers, or other inertial measurement units (IMUs) installed inside earphones, the technology can dynamically track the user's head movements and change the directionality of the sound based on the movements. Alternatively, by providing multiple channels via multiple speakers or audio transmitters, spatial audio can be achieved. This improves the user's listening experience and enhances immersion in entertainment and work environments. For example, when a user wears earphones to listen to music, the volume or audio equalizer for the left and / or right ear can be adjusted based on the user's movement, enhancing the music experience. This technology can also be used in virtual reality experiences, allowing users to perceive sounds as more natural and realistic, enhancing entertainment interactions.

[0003] Most conventional spatial audio signals combine a gyroscope or accelerometer in an earphone to track the user's head movement. This method places high demands on the user's behavior. For example, this method is not applicable when the user's movement speed is too slow or when moving back and forth. Therefore, the present invention provides a sound wave analysis method, system, and device for spatial audio signals, which analyzes the user's behavior using sound waves and adjusts the output audio signal accordingly. This method is not limited in its usage and has higher accuracy. Summary of the Invention

[0004] The main objective of the present invention is to provide a sound wave analysis method adapted to spatial audio signals, which analyzes user positioning information from audio signals, achieves accurate detection of user behavior, and improves the user's experience.

[0005] Another object of the present invention is to provide a sound wave analysis system adapted to spatial audio signals, in which a conversion unit converts the audio signals into a dynamic analysis of a user, and then adjusts the corresponding audio signals accordingly, outputting audio signals with spatial audio signals to enhance the realism of the audio.

[0006] It is yet another object of the present invention to provide an acoustic wave analysis device adapted to spatial acoustic signals, which uses an output device or an electronic device as a transmission source, analyzes the user's behavior based on the acoustic signals, and adjusts the acoustic signals accordingly, thereby greatly improving the analysis accuracy. [Means for solving the problem]

[0007] In order to achieve the above object, one aspect of the present invention is an acoustic wave analysis method applied to a spatial acoustic signal, which includes the steps of transmitting an acoustic signal from a transmitting end, receiving the acoustic signal by a receiving end and generating corresponding intensity variation information, calculating the intensity variation information using an algorithm to generate positioning information, and adjusting the acoustic signal based on the positioning information to generate an acoustic signal having a spatial acoustic signal.

[0008] In a preferred embodiment of the present invention, in the step of transmitting an acoustic signal from a transmitting end, a light source is detected and corresponding light source change information is generated, and the transmitting end transmits the acoustic signal corresponding to the intensity based on the light source change information.

[0009] In a preferred embodiment of the present invention, in the step of calculating the intensity variation information by an algorithm to generate positioning information, the algorithm performs calculation based on the intensity variation information and an inverse proportional relationship between the distance value between the transmitting end and the receiving end to generate the positioning information, and the positioning information includes spatial position information and movement variation information.

[0010] In a preferred embodiment of the present invention, in the step of adjusting the acoustic signal based on the positioning information and generating an acoustic signal having a spatial acoustic signal, frequency drift information is generated based on changes in the positioning information, the frequency drift information is calculated using the Doppler effect to generate acceleration, behavior analysis information is generated by analyzing the positioning information and the acceleration, and the acoustic signal is adjusted based on the behavior analysis information.

[0011] In order to achieve the above-mentioned other object, another aspect of the present invention is an acoustic wave analysis system applicable to spatial acoustic signals, which includes a transmitting end and a receiving end, and includes a conversion unit that transmits an acoustic signal from the transmitting end and receives the acoustic signal at the receiving end to generate corresponding intensity variation information, and a calculation processing unit that receives a signal from the conversion unit, performs an analysis calculation based on the intensity variation information, adjusts the acoustic signal, and generates an acoustic signal having a spatial acoustic signal.

[0012] In a preferred embodiment of the present invention, the conversion unit is provided with a sensing unit connected to the conversion unit for detecting a light source to generate light source change information and transmitting the light source change information to the conversion unit, and the conversion unit receives the light source change information and transmits the acoustic signal corresponding to the intensity based on the light source change information.

[0013] In order to achieve yet another object described above, yet another aspect of the present invention is an acoustic wave analysis device applicable to spatial acoustic signals, comprising: an electronic device for transmitting an acoustic signal; and an output device connected to the electronic device, receiving the acoustic signal, generating corresponding intensity variation information and transmitting it to the electronic device, the electronic device adjusting the acoustic signal based on the intensity variation information, generating an acoustic signal having the spatial acoustic signal; and the output device outputting the acoustic signal having the spatial acoustic signal.

[0014] In order to achieve yet another object described above, yet another aspect of the present invention is an acoustic wave analysis device applicable to spatial acoustic signals, which includes an electronic device that receives an acoustic signal, generates corresponding intensity variation information, and adjusts the acoustic signal based on the intensity variation information to generate an acoustic signal having a spatial acoustic signal, and an output device connected to the electronic device for transmitting the acoustic signal and outputting the acoustic signal having the spatial acoustic signal.

[0015] In a preferred embodiment of the present invention, the output device includes a transmitter for transmitting the acoustic signal.

[0016] In a preferred embodiment of the present invention, a signal is connected to the output device, and the output device comprises a light sensor for detecting a light source to generate light source change information, and the output device transmits the acoustic signal corresponding to the intensity based on the light source change information.

[0017] The beneficial effects of the present invention are increased accuracy in dynamic activity tracking, an enhanced user experience, and solving the limitations of conventional positioning techniques. [Brief explanation of the drawings]

[0018] [Figure 1A] 1 is a flowchart illustrating a sound wave analysis method applied to a spatial acoustic signal according to an embodiment of the present invention. [Figure 1B] FIG. 10 is a relationship diagram showing distance and intensity change information according to an embodiment of the present invention. [Figure 1C]FIG. 10 is a diagram showing the results of a sound wave analysis according to an embodiment of the present invention. [Figure 2] 1 is a schematic diagram illustrating a sound wave analysis system applied to a spatial acoustic signal according to an embodiment of the present invention; [Figure 3A] 1 is a schematic diagram showing a sound wave analysis device applied to a spatial acoustic signal according to a first embodiment of the present invention. [Figure 3B] FIG. 10 is a schematic diagram showing a sound wave analysis device applied to a spatial acoustic signal according to a second embodiment of the present invention. [Figure 4A] 1 is a schematic diagram showing a first embodiment of the present invention; [Figure 4B] FIG. 10 is a schematic diagram showing a second embodiment of the present invention. [Figure 4C] FIG. 10 is a schematic diagram showing a third embodiment of the present invention. [Figure 4D] FIG. 10 is a schematic diagram showing a fourth embodiment of the present invention. [Figure 4E] FIG. 10 is a schematic diagram showing a fifth embodiment of the present invention. [Figure 4F] FIG. 10 is a schematic diagram showing a fifth embodiment of the present invention. [Figure 4G] FIG. 10 is a schematic diagram showing a sixth embodiment of the present invention. [Figure 4H] FIG. 10 is a schematic diagram showing a sixth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to make the above and / or other objects, advantages and features of the present invention more easily understandable, particularly preferred embodiments of the present invention will be described in detail below.

[0020] 1A is a flowchart illustrating a sound wave analysis method applied to a spatial audio signal according to an embodiment of the present invention. As shown in the figure, the steps of the sound wave analysis method applied to a spatial audio signal according to an embodiment of the present invention are as follows: Step S1: An acoustic signal is transmitted from the transmitting end. Step S2: A receiving end receives the acoustic signal and generates corresponding intensity variation information. Step S3: The intensity change information is calculated using an algorithm to generate positioning information. Step S4: Adjusting the acoustic signal based on the positioning information to generate an acoustic signal having a spatial acoustic signal.

[0021] As shown in step S1, an acoustic signal is transmitted from a transmitting end. In one embodiment, the transmitting end may be a smartphone, a tablet, a laptop, a personal computer, or a television, or may be an earphone or an ultrasonic transmitter, or any device having a speaker, but the present invention is not limited thereto, and the frequency range of the acoustic signal may be between 20 Hz and 2 MHz.

[0022] In one embodiment, the device can further detect light sources in the environment and generate corresponding light source change information, i.e., detect changes in the ambient light. In this way, the user's behavior can be inferred by tracking changes in the ambient light. Here, the transmitting end can transmit an audio signal corresponding to the intensity based on the light source change information, and the user's behavior can be determined based on the difference in the intensity of the audio signal.

[0023] As shown in step S2, the receiving end receives the acoustic signal transmitted in the previous step and generates corresponding intensity variation information. In one embodiment, the receiving end may be a smartphone, a tablet, a laptop, a personal computer, or a television, or may be an earphone, or any device with a microphone, and the present invention is not limited thereto. The intensity variation information is used to analyze the distance value between the receiving end and the transmitting end, and analyze the dynamic positioning of the user.

[0024] As shown in step S3, an algorithm is used to calculate positioning information based on the intensity variation information. The algorithm performs calculations based on the intensity variation information and the inverse proportional relationship between the distance value between the receiving end and the transmitting end, and the positioning information may include spatial position information and movement variation information. The spatial position information may be the location of the receiving end, and the movement variation information may be the movement distance of the receiving end, or may be the tracking of the movement of the head when the receiving end is placed on the head.

[0025] 1B is a diagram illustrating the relationship between distance and intensity variation information according to an embodiment of the present invention. As shown in the figure, in one embodiment, the intensity variation information may be calculated based on a Fast Fourier Transform (FFT), and the longer the distance, the lower the intensity, and conversely, the shorter the distance, the higher the intensity. Therefore, based on the intensity variation information, it is possible to infer the change in the distance value between the transmitting end and the receiving end and generate corresponding positioning information.

[0026] In one embodiment, the acoustic signals may be collected at a single point or multiple points, and in this case, real-time spatial position information and movement change information can be calculated one by one based on the inverse proportional relationship between the intensity change information of each acoustic signal and the distance.

[0027] As shown in step S4, the acoustic signal is adjusted based on the positioning information acquired in the previous step to generate an acoustic signal having a spatial audio signal. In one embodiment, frequency drift information may be generated based on changes in the positioning information. In this case, the frequency drift information may be calculated using the Doppler effect to generate corresponding acceleration. Corresponding behavior analysis information is then generated by analyzing the positioning information and acceleration. The behavior analysis information may not only track the dynamics between the transmitting end and the receiving end when playing a video, but also interpret user behavior based on these dynamics. For example, the behavior analysis information may include whether the user is sleeping or behavioral patterns such as moving away from the video playback position, but is not limited thereto.

[0028] In other words, by adjusting the speed difference and volume of the sounds received by both ears, the speed difference can be very short, even a few milliseconds, and can mimic the sense of direction and distance between the user and the sound signal source, thereby generating an audio signal with virtual surround sound, so that the audio signal heard by the user can be adjusted according to the user's different behaviors. Specifically, the adjustment method can be to increase or decrease the audio frequency volume of different audio frequency channels, but the present invention is not limited thereto.

[0029] FIG. 1C is a diagram showing the results of acoustic analysis according to an embodiment of the present invention. As shown in FIG. 1C, an example of generating positioning information by performing calculations based on acoustic signals with different intensities involves placing two transmitting ends (located at the left and right ears, respectively) on the user's body, transmitting acoustic signals, and generating corresponding intensity variation information. The dark gray signal portion represents the acoustic signal received by the receiving end from the left transmitting end, while the light gray signal portion represents the acoustic signal received by the receiving end from the right transmitting end. The intensity portion represents the intensity variation information of the received acoustic signal, thus indicating seven stages of rotation from left to right. The first stage represents the initial measurement value. In the second stage, the left signal strength is higher than the right signal strength, and the change in distance value is estimated based on the intensity variation, indicating a 45° rotation to the right compared to the previous stage. After the third and fourth stages, the left signal strength gradually decreases to its original strength, and the right signal strength gradually increases to its original strength. Furthermore, a change in the distance value is estimated based on the change in intensity, and the image is rotated 90 degrees to the right compared to the original state, and then rotated back to the original direction position.

[0030] Conversely, in the fifth stage, the left signal strength is clearly weaker than the right signal strength, and the change in distance value is estimated based on this change in strength, indicating a 45° rotation to the left compared to the previous state. Moving on to the sixth and seventh stages, the left signal strength gradually increases to its original strength, and the right signal strength gradually decreases to its original strength. Furthermore, the change in strength is estimated based on the change in distance value, indicating a 90° rotation to the left compared to the original state, and a rotation back to the original direction.

[0031] The method reliably finds that the acoustic signal can be used to analyze the user's positioning information and behavioral analysis information, and thus adjust the acoustic signal accordingly, making the sound more similar to the real situation.

[0032] 2 is a schematic diagram showing a sound wave analysis system applied to spatial acoustic signals according to an embodiment of the present invention. As shown in the figure, the sound wave analysis system applied to spatial acoustic signals according to an embodiment of the present invention comprises a conversion unit 1, a processing unit 2, and a sensing unit 3. The conversion unit 1 is connected to the processing unit 2 and the sensing unit 3, and signals are respectively connected to the conversion unit 1 and the sensing unit 3, which will be described in detail below.

[0033] The conversion unit 1 includes a transmitting end 11 and a receiving end 12, whereby an acoustic signal is transmitted from the transmitting end 11. The acoustic signal may be in the range of 20Hz to 2MHz, i.e., the transmitted acoustic signal may be a human audible signal or an ultrasonic signal, and the receiving end 12 receives the acoustic signal and generates corresponding intensity variation information. In other words, when there is a change in the distance value between the transmitting end 11 and the receiving end 12, the intensity of the received acoustic signal will also be correspondingly different.

[0034] The processing unit 2 performs analysis and calculation based on the intensity change information, adjusts the acoustic signal accordingly, and generates an acoustic signal with spatial acoustic signal, which is then output from the receiving end 12 of the conversion unit 1, generating an acoustic signal with spatial acoustic signal, that is, imitating a more realistic sound experience based on the dynamics of the receiving end 12.

[0035] The sensing unit 3 is used to detect the light source and generate light source change information, which may be a change in ambient light, but is not limited thereto. Thus, the conversion unit 1 determines to transmit an acoustic signal corresponding to the intensity based on the light source change information. In other words, the state of the light source change is indicated by the acoustic signal.

[0036] 3A is a schematic diagram showing a sound wave analysis device applied to a spatial acoustic signal according to a first embodiment of the present invention. As shown in the figure, the sound wave analysis device applied to a spatial acoustic signal according to the first embodiment of the present invention includes an electronic device 4A and an output device 5A, and the electronic device 4A is connected to the output device 5A for signal transmission, which will be described in detail below.

[0037] The electronic device 4A is used to transmit an acoustic signal, i.e., the electronic device 4A is the transmitting source. The frequency of the acoustic signal may range between 20 Hz and 2 MHz. In one embodiment, the electronic device 4A may be selected from a smartphone, a tablet, a laptop, a personal computer, or a television.

[0038] The output device 5A is used to receive the acoustic signal transmitted by the electronic device 4A, i.e., the output device 5A serves as a receiving source to obtain corresponding intensity variation information, and the electronic device 4A adjusts the acoustic signal based on the intensity variation information and generates an acoustic signal having a spatial audio signal, which is then output by the output device 5A. In one embodiment, the output device 5A includes at least one speaker, which may be, for example, a general earphone, or of course, an AR or VR earphone, worn by a user in both ears, and which is used to output the acoustic signal having the spatial audio signal, but the present invention is not limited thereto.

[0039] 3B is a schematic diagram showing a sound wave analysis device applied to a spatial audio signal according to a second embodiment of the present invention. As shown in the figure, the sound wave analysis device applied to a spatial audio signal according to an embodiment of the present invention includes an electronic device 4B and an output device 5B, and the electronic device 4B is connected to the output device 5B for signal transmission, which will be described in detail below.

[0040] The electronic device 4B is used to receive the acoustic signal transmitted by the output device 5B, i.e., to use the electronic device 4B as a receiving source, obtain corresponding intensity variation information, and adjust the acoustic signal according to the intensity variation information to generate an acoustic signal having a spatial audio signal. In one embodiment, the electronic device 4B may be selected from a smartphone, a tablet, a laptop, a personal computer, or a television.

[0041] The output device 5B is used to transmit an audio signal, i.e., the output device 5B is a transmission source and outputs an audio signal having a spatial audio signal. In one embodiment, the output device 5B may be a general earphone, or may be an AR or VR earphone, and outputs an audio signal having a spatial audio signal to provide the user with a virtual surround sound effect and make the listening experience more realistic, but the present invention is not limited thereto.

[0042] In one embodiment, the output device 5B may include a transmitter, for example, an ultrasonic transmitter for transmitting an acoustic signal is installed in the output device 5B, but the present invention is not limited thereto.

[0043] The second embodiment differs from the first embodiment in that the transmitting source and receiving source are different.

[0044] In one embodiment, the output device 5B further includes a light sensor 6 for detecting a light source and generating light source change information, and the output device 5B can output a corresponding audio signal based on the light source change information. In other words, audio signals corresponding to different intensities are output based on changes in the ambient light source, but the present invention is not limited thereto.

[0045] To more clearly illustrate how the present invention may be practiced, the following examples are provided.

[0046] 4A is a schematic diagram illustrating a first embodiment of the present invention. As shown in FIG. 4A, the first embodiment 100 is an example in which an electronic device 101 transmits an acoustic signal 102, and the electronic device 101 is positioned directly in front of a user 103, who wears a left earphone 104 and a right earphone 105. The left earphone 104 receives the acoustic signal 102 from the electronic device 101 and generates first intensity variation information 106, and the right earphone 105 receives the acoustic signal 102 from the electronic device 101 and generates second intensity variation information 107. The following embodiments are included:

[0047] Part A indicates that the user's 103 head has rotated to the left when the first intensity change information 106 received by the left earphone 104 decreases and the second intensity change information 107 received by the right earphone 105 increases. Part B indicates that the user's 103 head has rotated to the right when the first intensity change information 106 received by the left earphone 104 increases and the second intensity change information 107 received by the right earphone 105 decreases. In part C, if the first intensity change information 106 received by the left earphone 104 and the second intensity change information 107 received by the right earphone 105 increase or decrease simultaneously, it indicates that the user 103 has moved forward or backward. In other words, the distance between the user 103 and the electronic device 101 has changed to move away or closer.

[0048] 4B is a schematic diagram illustrating a second embodiment of the present invention. As shown in FIG. 4B, the second embodiment 200 is an example in which an acoustic signal is received by an electronic device 201, the electronic device 201 is located directly in front of a user 202, and the user 202 wears a left earphone 203 and a right earphone 204. The left earphone 203 transmits an acoustic signal 205, and the right earphone 204 transmits an acoustic signal 206. The electronic device 201 receives the acoustic signal 205 and the acoustic signal 206 and converts them into first intensity variation information 207 and second intensity variation information 208, respectively, and includes the following embodiments: Part A indicates that the head of the user 202 has turned to the left when the first intensity change information 207 decreases and the second intensity change information 208 increases. Part B indicates that the head of the user 202 has turned to the right when the first intensity change information 207 increases and the second intensity change information 208 decreases. In part C, if the first intensity change information 207 and the second intensity change information 208 increase or decrease simultaneously, it indicates that the user 202 has moved forward or backward. In other words, the distance between the user 202 and the electronic device 201 changes to move away or closer.

[0049] 4C is a schematic diagram illustrating a third embodiment of the present invention. As shown in FIG. 4C, the third embodiment 300 is an example in which an electronic device 301 receives an acoustic signal, and the electronic device 301 is located directly in front of a user 302, who installs a left transmitter 303 and a right transmitter 304. The left transmitter 303 transmits an acoustic signal 305, and the right transmitter 304 transmits an acoustic signal 306. At this time, the electronic device 301 receives the acoustic signal 305 and the acoustic signal 306, and converts them into first intensity variation information 307 and second intensity variation information 308, respectively, and includes the following embodiments: Part A indicates that the head of the user 302 has turned to the left when the first intensity change information 307 decreases and the second intensity change information 308 increases. Part B indicates that the head of the user 302 has turned to the right when the first intensity change information 307 increases and the second intensity change information 308 decreases. In part C, if the first intensity change information 307 and the second intensity change information 308 increase or decrease simultaneously, it indicates that the user 302 has moved forward or backward. In other words, the distance between the user 302 and the electronic device 301 changes to move away or closer.

[0050] 4D is a schematic diagram illustrating a fourth embodiment of the present invention. As shown in FIG. 4D, in the fourth embodiment 400, optical sensors are added, and a left optical sensor 401 and a right optical sensor 402 are installed, and a left transmitter 403 and a right transmitter 404 are also attached. When a light source L is irradiated onto the left optical sensor 401 and the right optical sensor 402, respectively, the left optical sensor 401 outputs first light source change information to the left transmitter 403, which then transmits an audio signal 405 corresponding to the intensity to the electronic device 406. Similarly, the right optical sensor outputs second light source change information to the right transmitter 404, which then transmits an audio signal 407 corresponding to the intensity to the electronic device 406. The electronic device 406 then calculates the information, obtains behavior analysis information corresponding to the user, and adjusts the output audio signal accordingly.

[0051] 4E to 4F are schematic diagrams illustrating a fifth embodiment of the present invention. As shown in the figures, the fifth embodiment 500 includes a plurality of light sources L1 and L2. A user 501 wears an AR or VR earphone 502 and is also provided with a left optical sensor 503, a right optical sensor 504, a left ultrasonic transmitter 505, and a right ultrasonic transmitter 506. When a light source L illuminates the left optical sensor 503 and the right optical sensor 504, respectively, the left optical sensor 503 outputs first light source change information to the left ultrasonic transmitter 505, which then transmits an acoustic signal 507 corresponding to the intensity. Similarly, the right optical sensor 504 outputs second light source change information to the right ultrasonic transmitter 506, which then transmits an acoustic signal 508 corresponding to the intensity. The frequency range of the acoustic signals 507 and 508 is greater than 20 kHz.

[0052] 4F, a receiver 509 of an AR or VR earphone 502 receives a left acoustic signal 507 and a right acoustic signal 508, and then generates corresponding first intensity change information 510 and second intensity change information 511. Thus, if the first intensity change information 510 is greater than the second intensity change information 511, the user is turning right; conversely, if the first intensity change information 510 is less than the second intensity change information 511, the user is turning left.

[0053] In one embodiment, the left light sensor 503 and the right light sensor 504 may be installed on both ears or both sides of the head, respectively, to determine the change in light source at the position and obtain the corresponding behavior analysis information more accurately. The head can be rotated at different angles or directions, and different light source change information can be recorded and used as behavior analysis information samples. Data measured by inertial sensors such as gyroscopes and accelerometers can also be combined to obtain behavior analysis information samples, such as dimensional and directional information of a certain movement, but the present invention is not limited thereto.

[0054] In the sixth embodiment, FIGS. 4G to 4H are schematic diagrams illustrating a sixth embodiment of the present invention. As shown in the figures, the sixth embodiment 600 includes multiple light sources L1 and L2. A user 601 wears an AR or VR earphone 602 and is equipped with a left light sensor 603, a right light sensor 604, a left transmitter 605, and a right transmitter 606. When a light source L illuminates the left light sensor 603 and the right light sensor 604, respectively, the left light sensor 603 outputs first light source change information to the left transmitter 605, which then transmits an acoustic signal 607 corresponding to the intensity. Similarly, the right light sensor 604 outputs second light source change information to the right transmitter 606, which then transmits an acoustic signal 608 corresponding to the intensity. In the sixth embodiment, changes in light also indicate movement, generating different acoustic wave changes. In the fifth embodiment, acoustic waves are directly used as the basis for distance measurement. Also, the sixth and fifth embodiments may use different sonic frequencies simultaneously in one device, allowing for verification and more accurate calculations.

[0055] 4H, the receiver 609 of the AR or VR earphone 602 receives the left acoustic signal 607 and the right acoustic signal 608, and then generates corresponding first intensity variation information 610 and second intensity variation information 611. Here, the receiver 609 can know the corresponding light source intensity variations of the left optical sensor 603 and the right optical sensor 604 through the first intensity variation information 610 and the second intensity variation information 611, thereby realizing head dynamic tracking of the spatial acoustic signal.

[0056] To summarize the above, the acoustic analysis method, system, and device applied to spatial acoustic signals according to the present invention analyze a user's dynamic behavior using acoustic signals, thereby improving the accuracy of behavior analysis, enhancing the user's listening experience, and solving the problems that traditional positioning technologies are limited in, thereby achieving the object of the present invention.

[0057] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. [Explanation of symbols]

[0058] 1 conversion unit 100 First embodiment 101 Electronic equipment 102 Acoustic Signals 103 users 104 Left earphone 105 Right earphone 106 First intensity change information 107 Second Intensity Change Information 2. Processing Unit 200 Second embodiment 201 Electronic equipment 202 users 203 Left earphone 204 Right earphone 205 Acoustic Signals 206 Acoustic Signals 207 First Intensity Change Information 208 Second Intensity Change Information 3 Sensing Unit 300 Third embodiment 301 Electronic equipment 302 users 303 Left transmitter 304 Right side transmitter 305 Acoustic Signal 306 Acoustic Signals 307 First intensity change information 308 Second Intensity Change Information 400 Fourth embodiment 401 Left side light sensor 402 Right side light sensor 403 Left transmitter 404 Right side transmitter 405 Acoustic Signal 406 Electronic equipment 407 Acoustic Signal 4A electronic equipment 4B Electronic equipment 500 Fifth embodiment 501 users 502 Earphones 503 Left side light sensor 504 Right side light sensor 505 Left ultrasonic transmitter 506 Right side ultrasonic transmitter 507 Acoustic Signal 508 Acoustic Signal 509 Receiver 510 First intensity change information 511 Second Intensity Change Information 5A output device 5B Output Device 6. Light Sensor 600 Sixth embodiment 601 users 602 Earphones 603 Left side light sensor 604 Right side light sensor 605 Left ultrasonic transmitter 606 Right side ultrasonic transmitter 607 Acoustic Signal 608 Acoustic Signal 609 Receiver 610 First intensity change information 611 Second Intensity Change Information L light source L1 light source L2 light source S1 Step S2 Step S3 Step S4 Step

Claims

1. transmitting an acoustic signal from a transmitting end; receiving the acoustic signal by a receiving end and generating corresponding intensity variation information; calculating the intensity variation information by an algorithm to generate positioning information; and adjusting the acoustic signal based on the positioning information to generate an acoustic signal having a spatial acoustic signal.

2. 2. The acoustic analysis method for spatial acoustic signals according to claim 1, wherein in the step of transmitting an acoustic signal from a transmitting end, a light source is detected and corresponding light source change information is generated, and the transmitting end transmits the acoustic signal corresponding to the intensity based on the light source change information.

3. 2. The acoustic wave analysis method for spatial acoustic signals according to claim 1, wherein in the step of calculating the intensity variation information by an algorithm and generating positioning information, the algorithm performs calculation based on the intensity variation information and an inverse proportional relationship between a distance value between the transmitting end and the receiving end to generate the positioning information, and the positioning information includes spatial position information and movement variation information.

4. 2. The acoustic analysis method applied to spatial acoustic signals according to claim 1, wherein in the step of adjusting the acoustic signal based on the positioning information and generating an acoustic signal having a spatial acoustic signal, frequency drift information is generated based on a change in the positioning information, the frequency drift information is calculated using a Doppler effect, acceleration is generated, the positioning information and the acceleration are analyzed to generate behavior analysis information, and the acoustic signal is adjusted based on the behavior analysis information.

5. a conversion unit including a transmitting end and a receiving end, for transmitting an acoustic signal from the transmitting end and receiving the acoustic signal by the receiving end to generate corresponding intensity variation information; a processing unit connected to the conversion unit, performing an analysis operation based on the intensity variation information, adjusting the acoustic signal, and generating an acoustic signal having a spatial acoustic signal.

6. 6. The acoustic analysis system for spatial acoustic signals according to claim 5, further comprising: a sensing unit connected to the conversion unit to detect a light source to generate light source change information and transmit the light source change information to the conversion unit, wherein the conversion unit receives the light source change information and transmits the acoustic signal corresponding to the intensity based on the light source change information.

7. an electronic device for transmitting an acoustic signal; an output device connected to the electronic device for receiving the acoustic signal, generating corresponding intensity variation information and transmitting it to the electronic device, the electronic device adjusting the acoustic signal based on the intensity variation information to generate an acoustic signal having a spatial acoustic signal, and the output device outputting the acoustic signal having the spatial acoustic signal.

8. an electronic device that receives an acoustic signal, generates corresponding intensity variation information, and adjusts the acoustic signal based on the intensity variation information to generate an acoustic signal having a spatial audio signal; and an output device connected to the electronic device for transmitting the acoustic signal and outputting an acoustic signal having the spatial acoustic signal.

9. 9. The acoustic wave analysis device applied to a spatial acoustic signal according to claim 8, wherein the output device comprises a transmitter for transmitting the acoustic signal.

10. The sound wave analysis device for spatial acoustic signals according to claim 8, characterized in that the output device is connected to a signal source and includes an optical sensor for detecting a light source to generate light source change information, and the output device transmits the sound signal corresponding to the intensity based on the light source change information.

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